Robert Herdman Sudduth, M.D.
Gastroenterology Physician · Silverdale, WA
Robert Herdman Sudduth, M.D. is a gastroenterology physician with a practice address in Silverdale, Washington, and NPI 1184651192, issued on Jun 26, 2006. Check the license (Washington MD00025993, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Robert Herdman Sudduth
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD00025993 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2200 NW Myhre RD, Silverdale, WA 98383
- Phone
- (360) 830-1205
- Enumerated
- Jun 26, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (360) 830-1281
- Medicaid ID
- 8214132 WA
- Medicare enrollment
- Enrolled (PECOS I20040730001135); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 533 in Washington → Look up another NPI →
Also registered at 2200 NW Myhre RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael ArauSurgical Technologist1083755219
- Casey Burnham, PT, DPTPhysical Therapist1568839900
- Julia Carrington, OTD, OTR/LOccupational Therapist1346789070
- Nathan Chadwick, PA-CPhysician Assistant1710125554
- Christopher Chavarria, D.O.Allergy & Immunology Physician1699114017
- Micah ChristensenPhysical Therapist1679038129
Verify Robert Herdman Sudduth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00025993Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average gastroenterology physician in 2024
371 Medicare Part D claims for 166 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Mercaptopurine42 claims
- Mesalamine38 claims
- Gavilyte-G37 claims
- Peg-3350 And Electrolytes33 claims
- Sulfasalazine31 claims
- Gavilyte-C27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $212.35
10 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Franciscan Medical GroupSilverdale, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Herdman Sudduth among 533 gastroenterology physician records in Washington
Robert Herdman Sudduth, M.D. is one of 533 gastroenterology physician records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 48% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1984 · median 2003 among the 373 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Washington
There are 533 gastroenterology physician records in Washington.
All 533 in Washington → Every provider in Silverdale → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Bryan Doherty, M.D.Silverdale, WA 983831497123384
- Rishabh Gulati, MDSilverdale, WA 983831649688698
- Yana Parker, M.D.Silverdale, WA 983831629495171
- Spencer Root, M.D.Silverdale, WA 983831265474621
- Pankaj Sharma, M.D.Silverdale, WA 983831306973227
- Narendra Siddaiah, MDSilverdale, WA 983831942225453
- Yuen Yee, MDSilverdale, WA 983831457488371
- Frank Jahns, MDSequim, WA 983821205862604
Common questions
What is Robert Herdman Sudduth, M.D.'s NPI number?
Robert Herdman Sudduth, M.D.'s National Provider Identifier (NPI) is 1184651192, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Herdman Sudduth, M.D. located?
The NPPES record lists a practice address at 2200 NW Myhre RD, Silverdale, WA, 98383. Phone: (360) 830-1205. Providers update this record themselves, so call before visiting.
How can I verify Robert Herdman Sudduth, M.D.'s license?
NPPES lists Washington license number MD00025993, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Herdman Sudduth, M.D. prescribe under Medicare Part D?
In 2024, Robert Herdman Sudduth, M.D. had 371 Medicare Part D claims for 166 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.